Facebook Notification Button
You need to have the like button on the page already for someone to like the page (eg. I will show you how to manage your facebook notifications on your facebook app and avoid distraction from receiving too much notification which will help.
You have the option of adding a follow button to your own facebook timeline to enable follower notifications: Facebook already has you hooked, but now it wants to keep you engaged with dozens of as facebook's notifications get increasingly aggressive, you have to fight back even harder to reclaim. You need to have the like button on the page already for someone to like the page (eg.
A definitive guide to understand.